low energy retrofit project additions …...throughout the design process of the constitution hill...

22 m²Storage

2586 m²Basement Carpark

32 m²Private Garden





51 m²Laundrette/Cafe

26 m²Private Balcony

48 m²Entrance Lobby

17 m²Bike Store


53 m²Access Deck







Ground Floor Plan 1:400

First Floor Plan 1:400

Typical Upper Floor Plan 1:400

55 m²Access Balcony

Not EnclosedPrivate Balcony Not Enclosed

Private BalconyNot Enclosed



Private Balcony



Fifth Floor Plan 1:400

Roof Plan 1:400

Roof mounted solar PV panels

660mm Rheinzink angled standing seem roof.

Overhead shading canopy

480mm timber cladding external wall.

Parex EWI/ silicate render system or simimlar. Silicate 2 coatrender finish on reinforcement mesh on base coat

Powder coated aluminumBrise soleil with 1 metre overhang

Glass balcony panels with stainless steel balcony railing

40mm Non-Permeable Timber boarding onStructural steel Universal I beams fixed back to structural Steel columns

Support columns to external access deck

Granite paving and streets cape improvements

Infill for services

Triple glazed, aluclad timber patio doors/ windows

815

1262

1287

Wall Build up from External to Internal:15mm timber cladding. On 50X50mm vertical timberbattons. On a water membrain layer to be taped andsealed at joints with air tight tape with an over lap of100mm. On 12.5mm OSB. On 100mm XPS insulationoverlapped at joints. On 12.5mm OSB. On 200mmstimber stud wall filled with rockwool insulation is placedin between the studs. On a inteligent membrain layer tobe taped and sealed at joints with air tight tape with anover lap of 100mm. On 12.5mm OSB. On 50X50mmvertical timber battons to. On Two Layers of 12.5mmPlasterboard.

Roof Build up from External to Internal:Rheinzink angled standing seem coveringsloped to an an angle on 1:3. On 20mm structuralOSB. On 50x50mm Horizontal battons at600mm spacings. On a water membrain layer tobe taped and sealed at joints with air tight tapewith an over lap of 100mm. On 20mm structural OSB.On 100mm XPS insulation overlapped at joints. On12.5mm OSB On Structural BCI 90 Engineered C24I beams at 400mm centers, to enginers specificationwith 300mm rockwool insulation is placed in betweenthe beams. On a inteligent membrain layer to be taped andsealed at joints with air tight tape with an over lap of100mm. On 12.5mm OSB. On 100mm suspendedCeiling with space for MBHR Supply air ductworkand MHVR return extract ductwork with 15mm 600x600mmCeiling finish

100mm suspended Ceiling to NBS spec K45 with spacefor MBHR Supply air ductwork and MHVR return extractductwork with 15mm 600x600mm Ceiling finish

200mm polished concrete floor slab 35N20 concreteA142 mesh reinforcment with 50mm cover with100mm Suspended ceiling

Two Layers of 12.5mm Plasterboard Internal finishon 50x50mm Vertically fixed battons on 200mReinforced Concrete wall on Two layers of150mm XPS insulation overlapped at joints with10mm Plaster external finish

40mm Non-Permeable Timber boarding to NBS SpecH21 on Structural steel Universal I beams fixed backto structural Steel columns Both to NBS spec G10 &Sized to Engineers Spec Fixed Back to structure

Steel Framed balcony fixed back to structure with steelangles to NBS spec G12 and sized to Engineers Specwith 10mm thermal break

Structural steel column supporting balcony above

Drainage channel drain inbeded in concrete

Curtain walling to NBS Spec. H11 fixed strictly inaccordance with manufacturer’s specifications.

200mm polished concrete floor slab 35N20 concreteA142 mesh reinforment with 100mm suspended ceiling

New 200mm polished concrete floor slab 35N20concrete A142mesh reinforcement with 50mm cover laidon 300mm XPS insulation with radon barrier at joints it istaped and lapped.foundation to engineers spec.

50mm slab pavingon 50mm sand cementAspalt ON 3 LAYERS OF 100mm foamglass flat roofinsulation Joints lapping boards stagered onvapour/airtight membraine on 150mm concrete slab with100mm suspended ceiling with space for MVHR supply airductworkand MVHR return extract ductwork

Wind flower planting sedumon 100mm soil layeron root barrier/drainage membraine to

Concrete box beam toengineers spec with 3mmplaster skim on 12.5mmplasterboard

Zinc standing seam parapet capping laid to a 3degree fall on 18mm WBP plyboard

Drainage channel draininbeded in concrete

Parex EWI/ silicate render system or simimlar.Silicate 2 coat render finish on reinforcement meshon base coat all in accordence with suppliers detailspec.

Parapet build up300mm EPS insulation boards with rendered finishadhesive fixed to paster parge coat substrate with150mm pre-cast concrete upstand to with 100mmEXP insulation withrendered finish.

Air tight barrier atjoints is tappedand lapped






51 m²Laundrette/Cafe


48 m²Entrance Lobby

17 m²Bike Store

Throughout the design process of the Constitution hill retro fit, there were many influencing factors to be taken into consideration. One of which being the new Luas line that is to be put in place in late 2017. We took into consideration very carefully that there will be huge increase to the amount of people coming through the site on a daily basis, from this we have designed a retail space on ground level which can be accessed by the main road. We also changed the layout of the apartments by allowing the balconies to face the communal garden allowing privacy for the occu-pants and the access decks to face the main road instead of the original layout.

The existing building is not com-plaint with space standards in any room within the apartments. From this we came up with a suitable design to allow each apartment to be not only com-pliant with Dublin city council space standards but also com-pliant with the current Technical guidance documents.

Architect:

Daniel Coyle

Group:

Jack Lambourne Jamie Fitzgerald Patrick Dunne Aoife Ryan Craig Quinn

Kitchen

Living Space

Private Balcony

Bathroom

Hall

PASSIVHAUS STANDARDS

Optimised Fabric U-Values:0.12 W/m2k

Windows & Doors:0.85 2/m2k

Air Tightness:1 ac/hr @ 50 Pa

MHVR: 75% Efficient

Balconies provide summer shading

PASSIVE HOUSE ENERGY RETROFITSThe retrofit strategy proposes Design and Certification of retrofitting to Passivhaus EnerPhit standards. This will involve optimised super low energy fabric insualtion levels, near elimination of thermal bridges, air tightness to minimise heat loss, maximim use of solar gains, a high level of indoor air quality and an efficent mechanical ventilation system with heat recovery.

EXISTING BUILDINGS - ENERGY ANALYSISThe energy performance was examined using DEAP soft-ware, U Value calculation software and linear thermal bridge modelling. The DEAP analysis clearly indicated a major improvement of energy standards as every result was an G BER rating. The biggest loss was through the buildings fabric. The openings and walls were the main cause of heat loss.

LOW ENERGY RETROFIT PROJECTThe project proposes a sustainable design strategy for the energy retrofitting, refurshment and renewal of an existing Dublin City Council multi storey “flat top” residential apart-ment blocks located in the heart of Dublin City’s Centre. A number of issues were addressed including sustainable urban living and energy conservation.

Ground Floor of Existing building with heat loss

Typical Proposed One Bed Apartment

Typical Proposed Two Bed Apartment

Mechanical Heat Recovery MEP Model

Existing Buildng - Aerial view from South-East Additions - Infill between blocks, roof-top units with ground floor extended shop fronts to street. Proposed - New external panel walls & external balconies/ access decks

First Floor Plan

Site Elevation

1

2

Cross Section

3D Section

Exploded Floor Plans

1:20 Details

Proposed Floor Plans

Roof Material Thickness Thermal Conductivity Resistance

Internal Surface 0.12Zinc 0.003 116 3E‐05Structural OSB 0.022 0.13 0.169Structural OSB 0.022 0.13 0.169XPS Insulation 0.1 0.0341 2.933OSB 0.02 0.13 0.154Rockwool Insulation 0.3 0.044 6.818OSB 0.02 0.13 0.154External Surface 0.06

U‐value 0.09

Roof/ Balcony floor Material Thickness Thermal Conductivity Resistance

Internal Surface 0.12Structural Screed 0.07 0.12 0.583Sand Binding 0.05 0.25 0.200Rockwool Insulation 0.3 0.044 6.818Concrete Slab 0.1 1.6 0.063External Surface 0.06

U‐value 0.13

Wall Material Thickness Thermal Conductivity Resistance

Internal Surface 0.12Structural OSB 0.002 0.13 0.015XPS Insulation 0.1 0.0341 2.933OSB 0.02 0.13 0.154Rockwool Insulation 0.2 0.038 5.263OSB 0.02 0.13 0.154Plasterboard 0.00125 0.17 0.007Plasterboard 0.00125 0.17 0.007External Surface 0.06

U‐value 0.12

Floor Material Thickness Thermal Conductivity Resistance

Internal Surface 0.12Concrete Floor 0.2 1.6 0.125XPS Insulation 0.3 0.0341 8.798Concrete Slab 0.2 1.6 0.125External Surface 0.06

U‐value 0.11

Roof Material Thickness Thermal Conductivity Resistance

Internal Surface 0.12Zinc 0.003 116 3E‐05Structural OSB 0.022 0.13 0.169Structural OSB 0.022 0.13 0.169XPS Insulation 0.1 0.0341 2.933OSB 0.02 0.13 0.154Rockwool Insulation 0.3 0.044 6.818OSB 0.02 0.13 0.154External Surface 0.06

U‐value 0.09

Roof/ Balcony floor Material Thickness Thermal Conductivity Resistance

Internal Surface 0.12Structural Screed 0.07 0.12 0.583Sand Binding 0.05 0.25 0.200Rockwool Insulation 0.3 0.044 6.818Concrete Slab 0.1 1.6 0.063External Surface 0.06

U‐value 0.13

Wall Material Thickness Thermal Conductivity Resistance

Internal Surface 0.12Structural OSB 0.002 0.13 0.015XPS Insulation 0.1 0.0341 2.933OSB 0.02 0.13 0.154Rockwool Insulation 0.2 0.038 5.263OSB 0.02 0.13 0.154Plasterboard 0.00125 0.17 0.007Plasterboard 0.00125 0.17 0.007External Surface 0.06

U‐value 0.12

Floor Material Thickness Thermal Conductivity Resistance

Internal Surface 0.12Concrete Floor 0.2 1.6 0.125XPS Insulation 0.3 0.0341 8.798Concrete Slab 0.2 1.6 0.125External Surface 0.06

U‐value 0.11

Per Block Existing 1 Bed 102 Bed 163 Bed 34 Bed 1Total 30

Overall 90

Per Block Appartments Size Required

1 Bed 13 84 sq m 55 sq m 2 Bed 20 93 sq m 80 sq m 3 Bed 0 N/A N/A4 Bed 4 126 sq m 100 sq mTotal 37

Overall 111

low energy retrofit project additions …...throughout the design process of the constitution hill...

Documents